Auxiliary fire-alarm system.



PATEEETED JULY 3, 1906.

APPLICATION FILED-0O1'.20,1905.

BET II -II/zfifzzek swans" No. 824,804. PATENTED JULY 3, 1906.

G. P. MILLIKEN.

AUXILIARY FIRE ALARM SYSTEM.

APPLIGATION FILED 0,GT.ZQ,1905.

' 5 SHEETSSHBET 2.

66s as Jill/6i; 2 /01;

.No. 824,804. I PATENTED JULY 3, 1906 G. F.- MILLJKEN. I AUXILIARYEIRE RM SYSTEM.

' APPLIGATION FILED 001220, 1905.

' 5 SHEETS-SHEET a.

E' Q RIIIIA No, 824,804. PATENTLD JULY-3, 1906. G. P. MILLIKEN.

AUXILIARY FIRE ALARM SYSTEM.

APPLICATION. IYILED 00'1.20,1905.

0 5 SHEETS-SHEET 4.

L v/6222012 f a No. 824,804. PATENTED JULY 3, 1906. G. P. MILLIKEN. AUXILIARY FIRE ALARM SYSTEM.

APPLICATION FILED 0GT.20, 1905.

5 SHEETS-SHEET 5.

2 @yenwr Z; MWVM of Boston, county of Sufiolk, State of Massasubstation in the auxiliary circuit which has Y been operated to cause the street-box to send many rs snags r arn'r @FETQE.

GEORGE F. MILLI KEN, or BOSTON, MASSACHUSETTS, ASSIGNOR 'ro GAME- WELL FIRE-ALARM TELEGRAPH COMPANY, OF NEW YORK. N. Y. AUXlLlARY FIRE-ALARM SYSTEM.-

No. 824,804. Specification of Letters Patent.

Patented July a, 1906.

Application filed October 20, 1905. Serial No. 283.590-

To (all whom it may concern: i

n 7 provided with auxiliary actuating mechan- Be it known that I, GEORGE F. MILLIKEN,

ism of any well-known or suitable construction adapted to be operated by the auxiliary chusetts, have invented an Improvement in Auxiliary Fire-Alarm Systems, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like arts.

T 's invention has for its object to provide an auxiliary fire-alarm system with an indicating device by which the number of the.

extends to and includes several buildings or several floors of .a large building, or both, and has included in it several circuit-o erating devices, one or more 'for each building or floor of a building, as may be required. These circuit-operating devices are, so far as the resent invention is concerned, of-any wellnown or suitable construction and constitute substations, and the indicator is designed to indicate which substation has been in the alarm will be indicated at a point to be 6 erated to cause the stree,t-box to send in observed conveniently'by the iremen ret e alarm, so that the firemen may quickly sponding to the alarm. determine the exact location of the fire.

As the fire apparatus responding to an At some convenient locationas, for inalarm first goes to the fire-alarm box, or what stance, in one of the buildingsan apparatus is commonly called the street-box, 1 preis located for operating, the indicator. This fer to locate the indicator on the pole or other apparatus is operated by any one of the subsupport to which said box is attached, alstations, and when o eratedwillcause the though said indicator may be placed anyindicator to display tie number of the arwhere in the vicinity of said street-box or ticular substation, room, or building om elsewhere so far as my invention is conwhich the alarm originated. The apparacerned. The indicator which I employ is of tus comprises, essentially, a multiple-s1 nal the visual ty e in order that it may be obtransmitter adapted'to operate the circuit of served quickly by the firemen, and while said indicator having selecting devices which forms of visual indicators are noW determine or control its operation which are well known which are suitable for the purunder the control of the several substations, pose, yet my invention also includes the genthere being one selecting device for each suberal construction of a visual indicator which station or group of substations in a room or is especially devised for the purpose. The building, as desired. The transmitter will visual indicator herein shown consists, es- 0 erate the circuit of the indicator a number sentially, of a circular glass dial having num- 0 times in succession, according to the arbers thereon and means for moving said ,ticular-select-ing device which is operated by dial step by step to bring the numbers sucthe substation, so that the indicator will set cessively back of a window or opening in up or display the number of the substation, the front of a suitable case containing the in- While many forms of multiple-signal transdicating a paratus. A miniature electric mittersmaybe employed for-carrying out my light, whic is lighted when the indicator invention, yet the particular form herein operates, is located back of said dial to illushown possesses many advantages, and its minate it in order that the numbers on the general'cohstruction, therefore, forms a part dial may be observed at night. The indiof the present invention.- cator is provided with a telltale switch, The transmitter herein shown is normally which is included in the auxiliary circuit andwound and is let off simultaneously with the normally held closed by the indicating appareleaseofthe street-box bymeans controlled ratus and adapted to be opened whenever the indicating apparatus is o erated and to a telltale-switch whichis included in the auxthereafter remain open, and t ereby hold the iliary circuit and which is closed when the auxiliary circuit open until the 1ndicating transmitter is wound and adapted to be pparatus has been reset, said switch thereby opened whenever the transmitter is operated a in icating whether or not the indicator is set and to remain open until the transmitter has 111 condltion to operate. The street-box 1S circuit, and the auxiliary circuit, as usual, I

by the auxiliary circuit and is provided with been rewound, thereby indicating whether or era] circuits.

vices therefor and a trip 'iing-magnet.

Lil

Figure 1 shows a diagram of an auxiliary fire-alarm system having an indicating device embodying this invention. Fig. 2 is a front elevation of the means in! operating the inilicator, which is controlled by any oi the substations. comprising, essentially, a multiple-signal transmitter and selecting dc- Fig. 3 is P. Side elevation of the multipleignal transmitter and selecting dtwiccs. Fig. 4 is a side view of the selecting devices, the parts being in the position they will occupy when the signal is being transmitted to the indicator. is a side View of the tripping magnet and also of the cross-relay. Fig, 6 is e face view of the multiple-. gnal trans mitter, t in faceplate being removed and the transmitte at rest. Fig. 7 is a detail of the signahwhcel in its normal position. Fig. 8 is an edge view of the signal-wheel. Figs. 9 to '13, inclusive, are details of the winding de vice of the multiple-signal transmitter. Fig. 14 is an enlarged detail of the tripping-magnet. 15 is a front view of the indicator. Fig. 16 is a front view of the indicator with the lace-plate and dial-plate removed. Fig. 17 is a plan view of the indi 'ating mechanism. Figs. 18 to 20, inclusive, are details oi the switches operated by the indicating mechanism to be referred to.

The visual indicator which I meter to cmploy will lirst be described. (See Figs. 15 to 20.) (1 represents the body of a shell or case of suitable size and shape to contain the operating parts, and a the front plate. thcrcol', having a circular or other shaped opening a, back of which a numbered diaLphitc I! will be displayed.

1) represents the main shaft of the indicating apparatus, upon which the numbered dial-plate t) is rigidly mounted, having on its taco the nun'il'icrs of the sever: l substations. The dial-plate b is secured to a flange b", extended from a. collar or hub 1%, which is pinned or otherwise secured to the shalt. A knob b is secured to the shaft 11, which serves as a means for turning it by hand for the purpose of winding it. A spring- If is provided for turning the shaft, the inner end of whi h is attached to the shaft and the outer end to a fixed point. A toothed gear I) is secured to the main shaft, which engages a pinion b journaled in the frame, and to the arbor bearing said pinion b a (iiltflilrlttl'l'ltl' is secured, which consists of a. cross-bar I), secured to the arbor at a point intermediate its length and hearing at each end a detent 1), formed as a laterally-ext cndcd lug. A lot-oil lever u, made as a double locking-lever, is pivoted at a point. intermediate its length, as at i), to the frame, said lever hearing at one end two locking projections or lct-olls 1 ii, located a short distanc apart. and one r a i v j lesting 1 i are also provided for testing the scveat-s04 occupying a plane above the other. These projections or let-oil's I) I) are made as lugs extended laterally from one side of the lever,

and each is l'ornicd with one beveled lace, and they are designed to be successively engaged by the dctents I). The armature 12 ol an elcctroniagnet 15" is attached to the opposite end of said lever b". A rctractile spring I)" attached at one end to said level 15 and at the other end to a lixed point, the function of which is to move the armature into its retracted position. passes through the lever b",which by striking a fixed part of the frame or other stop limits the downward movement ol the lever. Normally the armature I) occupies its retracted position, and the detcnt I)" engages the locking projection I), as shown in Fig. 18, and thereby locks the main shaft bearing the dial-plate in its normal position.

hen the armature is attracted, the locking projection 15" disengages the dctcnt I), and the arbor bearing the (let(nit-carrier revolves until the other detent I)" is brought into engagement. with the locking projection I), (see Fig. 19,) making halt a rtWolution. During this halt-revolution til the arbor the main shalt I; will be revolved by the spring If lar enough to bring the first number on the dial into pcsition back of the opening (1". Subsequently the armature will be retracted and the locking projection i will disengage the detent I), and the latter will move into engagement. with the locking projection I) preparatory to being released when the armature is again attracted. This operation will be repeated to successively operate the dial-plate I) stop by step and bring the numbers into position back of the opening (1' To restore the dial-plate to, its normal position and wind the spring if, the operator will turn the ltnob I)" in the direct ion of the arrow, Fig. 15, and when doing so the toothed gear I) will revolve the pinion and dctent-carricr and the dctents I)" will engage the bevel-laces ol and pass by the locking projections I) I) until a cam-block c, which is secured to the main shaft, strikes against av lixed pin 0, projecting from the frame.

The dial-plate I) is preferably made ol' transparent material, and a miniature electric lamp c is contained in the shell or case back of the dial-plate lor the purpose of illuminating itwhcn the indic: torisoperatcd, and said lamp is contained in a suitable socket, which is connected in a lamp-circuit especially provided for it, said circuit consist.- ing of the ('ittittll-Wlt'tS c, c, c", and c, connected to the battery 0, and said lampcir uit contains a. switch which normally holds said circuit. open, but which closes it whenever the indicating apparatus is open utcd. The switch hereinshown loroporating the lamp-circuit consists of a pair of springacting contact-pens c 0 mounted uron a An adjusting-screw I)v YTS biockof insulating material and having a normal tendency to close together, and

means for separating them consisting of a cam c composed of a block of insulating material, which is secured to the main shaft 1). The circuit wires c" are respectively connected to the pens c 0.

Normally the cam 0 engages the uppermost contact-pen c and lifts it free from the contact-pen a so as to hold the lamp-circuit open, but whenever the main shaft bis turned b its retractirw-s )rin as it will be whenever the indicator operates, said cam will disen normally open at the multiple-signal transmitter.

A telltalcswitch' is also included in the box containing the visual indicator, which is connected with the aux liary circuit and is normally closed, but is adapted to be opened when the indicator is first operated and to be subsequently closed by hand when the indicator is wound. This switch is provided for the purpose of showing whether or not the indicator has been wound or reset, which it does by holding the auxiliary circuit open until such act. has been performed. The switch is represented as two contact-pens c c, attached to the opposite sides of the block c, the ends of which project beyond the block and have a normal tendency to spring apart, and the ends of said pens project into the path of movement of the cam 0 and are held by said cam in engagement with each other when said cam is in its normal position, being the position which it occupies when the indicator is wound. Upon the first operation of the indicator the cam 0 is turned, permitting said contact-pens c c to spring apart and open the auxiliary circuit, and at or about the same time the contact-pens c 0 close together and close the lamp-circuit.

1 Circuit-wires b b lead from the electromagnet 5 respectively, to the binding-posts b b, and a circuit-wire 71' is connected to the binding-post b, which forms a part of the indicator circuit which is operated by the multiple-signal transmitter, and a circuitwire V is connected to the binding-post b,

which forms apart of the auxiliary circuit, but'which is adapted to form apart of the indicator-circuit when the auxiliary circuit is open. A circuit-wire leads from the contact-pen 0 to the binding-post 0 and a circuit-wire 0 leads from the contactpen 0 to the binding-post I). A circuit wire 0 leads from the binding-post c to the street-box, which forms a part of the auxiliary circuit. As the switch 0 0 is normally closed the path for the current through the indicating apparatus is as follows: b b 0, c 0 0, 0 it beingunderstood that the indicator-circuit containing the electromagnet b is open.

When the switch c c is open and the in dicator-circuit closed at a distant point, the path for the current through the indicating apparatus will be as follows: b W, b b b207 22 b24 V The apparatus for operating the indicating device, and which is adapted to be controlled and operated by the circuit-operating device of any one of the substations, consists of a multiple-signal transmitter comprising, ossentially, a motor mechanism, a circuitoperating device operated by it for the indicatorcircuit, and selecting devices which determine the number of times the circuit-operating device shall operate the indicator-circuit to there )y move the indicating-dial step by step and display a number corresponding to the particular selecting device which has been operated. The motor mechanism is normally WOUl'ljlllllld is released by a trippingmagnet which is operated by the auxiliary circuit.

(1 rep esents the winding-shaft of the motor mechanism, (see Figs. 2, 6 and 9 to 13,)

having attached touit a mainspring d (see.

dotted lines, Fig. Gland bearing a ratchetwheel (1 which engages a spring-pressed pawl cl", pivoted to the face of a toothed gear (1*, which is mounted loosely on the shaft (1 and which engages a pinion (i secured to the signal-wheel shaft cl, to which is secured a toothed gear d, which engages a pinion (i secured to a shaft (2, bearing a toothed gear d, which engages a piniond secured to a shaft d,bearing an escape-wheeld flwhich is engaged by a suitable pallet (Z 01 represents the signa.l-wheel, which is secured to the shaft d, and said wheel has a pen-engaging portion d, u on which the several contact-pens d of t e selecting devicesbear, and also a toothed portion (2 adapted to engage the contact-pen d, which is connected with the indicator-circuit. ()n the face of the signal-wheel a segmental block d (see Fig. 8) of insulating material is se cured, which is adapted to engage and lift the member (Z of a switch free from engagement with the member d thereof. The switch. (1 d is connected with the auxiliary circuit, and its members are normally held closed by their inherent spring action when disengagedas, for instance, when the multiple-signal transmitter is wound and set in condition to operate; but whenever the transn'iittcr is operated said switch will be engaged by the segmental block d Which serves as an actuating device therefor, and will be opened just before the signal has been transmitted, thereby opening the auxiliary circuit at this point, and the auxiliary circuit thus opened will remain inoperative until said switch has been manually closed. The switch is adapted to be closed by means operated or controlled by the winding device or means employed. to wind and reset the multiple signal transmitter, and hence, said switch serves as a telltale to indicate whether or not the multiple-signal transmitter has been wound and reset. To accomplish this result, the signal-wheel shaft d is designed to make one complete rotation to first transmit the signal and then to open and subsequently close the telltale-switch, and the motor mechanism or train is arranged to trim the signalwheel shaft a predetermined part of a cycle to first transmit the signal and then open the telltale-switch and then cease and subsequently when wound and reset to complete the rotation of said signal-wheel shaft and close said telltale-switch. The motor mechanism thus has two successive periods of operation or two successive operations to coinpletely turn the signal-wheel shaft. To provide tor thus successively operating the motor mechanism, a locking device is employed consisting of a lever (Z pivoted to the trame at d and provided near one end with two teeth (Z (1 adapted to be sucessively engaged by a detent d, which is secured to one of the shafts of the train as, for instance, to the signal-wheel shaft (1. The locking-lever d is moved out of engagement with the detent (.l by a spring d whenever said spring is permitted to act, and its position relative to the detent is controlled by the winding device and by a member driven by the train. The winding device consists of a sleeve 0, mounted loosely on the projecting end of the windingshatt (I, having a lingenpiece c for turning it and a spring 0 encircling it, one end of which is coimected to the frame and the other end to the sleeve, which is adapted to turn the sleeve in a direction opposite to that employed for winding the shaft. The shaft has a short arm e projecting from it, which engages the tripping-dog of a tripping device to be described, and said arm has on its rear side a lug c, which when the sleeve is turned by the hngenpieco in a direction to wind the shaft will engage and lift a short arm (1 which is connected to the windingshaft to thereby turn said winding-shaft until the next tooth of the ratchet-wheel engages the pawl. The lug e on the winding device normally occupies a position at one side of an extension d on the locking-lever, and thus holds said lever with its second tooth. d in engagement with the detent d', the motor mechanism at such time being wound up and at rest. Whenever the trip ping device disengages the arm e ol the winding device, the spring a turns the winding device in the direction opposite to that which it was moved to wind the motor, and

the lug c is removed trom engagement with the extension 11 and the locking-lever is then tree to be moved by its actuating-spring to disengage the detent d and release the train.' 'As the train runs the short arm (1 on the winding-shatt is driven. backward in a direction opposite to that which it was moved when winding the motor, and said arm engages the extension d on the locking-lever and moves said loeking-lever into position to be engaged by the detent d so that when the train has run and turned the signahwheel shait bearing the detent al a predetermined part of a cycle said dctent will engage the ti rst tooth d of the locking-lever, and thereby stop the train. During the time thctrain has thus run the signal has been transmitted and the telltale-switch opened; but at the moment the train stops the actuating device (1 ot the telltale-switch is still in engagemnt with said switch, and the switch is consequently still held open. This constitutes the first period of operation of the train. The winding device is then operated to rewind the motor, anddhe lug e while engaging and lifting the short arm d to accomplish this re sult moves along adjacent to the extension d oi" the locking-lever, and as the arm d disengages said extension the latter moves into engagement with the lug e, and such movement is sn'liicient for the first tooth of the lockingdevcr to disengage the detent d and tor the second tooth thereof to be brought into position to be engaged'by said detent whenever said detent is moved by the train into engagement therein. The motor mechanism is thus rewound but during the Winding movement the arm a is moved a short distance beyond the tripping-dog before the next tooth ot' the ratchet-wheel engages the pawl, and the locking-lever moves out of engagement with the detent al so that when the operator disengages the winding device the motor is tree to start up and run until the arm 1 is moved backward into engagement with the tripping-dog and the detent (1 moves into engagement with the second tooth oi the locking-lever. This second movement or period oi operation of the train is very short; but during the period of operation the segmental block or actuating device for the telltale-switch is moved out of engagemcnt therewith and the telltale-switchthereupon closed. it will therefore be seen that the lirst. period oi" operation of the motor mechanism is controlled by any one of the substations, and its second period of operation is controlled by the winding device, and

that the telltale-switch is opened by the transmitting mechanism when operating to transmit its signal and is subsequently closed whenever the motor is rewound, an not until.

A short arm projects from the sleeve e toward the trippingalog, to which a flat spring a is attached, the free end of which extends beyond the outer end of the arm bearing it and serves as a yielding arm for engagng and restoring the tripping-dog.

frepresents the tripping-dog of the tripping device, which is made as a small bell-crank lever, one arm of which is adapted to be engaged by the yielding arm 6 of the winding device when the latter is operated to wind the motor mechanism and the other arm of which is adapted to serve as a prop to hold the arm e with the lug e back of the extension of the locking-lever to thereby hold said lockinglever in engagement with the detent d. The tripping-dog f is secured to the rockshaft f, having its bearing in the frame, and said roclcshat't has a curved arm f extended from it, hearing at its extremity a cross-bar which is adapted to engage the notched or shouldered end portion of a pivoted arm f to thereby hold the tripping-dog in position to hold the arm 6 A springf encircles the rockshaftj", which is connected to it at one end, the action of which is to turn said shaft in a direction to mo e the tripping-dog so as to release the arm The arm 7 is pivoted in engagen'ient with the cross-barf.

atf" to the frame and has an extension f, to which one end of a springf is connected, the

opposite end of said spring being connected to a fixed pinf on the frame, and said spring acts to hold the armj with its notched end The arm f is moved on its pivot to disengage the referred to as the tripping-magnet, the armaturef of which is attached to a lever f,

pivoted to the frame and bearing a downwardly-extcnding lug f, which whenever the armature 1S retracted will engage the arm f to rock the shaft and move the trippingdog to release the arm a, and thereby release the motor mechanism.

The selecting devices of the multiple-signal transmit-tor comprise a plurality of electromagnets i, located at the transmitter and corresponding in number to the number of substations, rooms, or buildings to be indicated and respectively included in branch wires 71 h 6, leading from the heavy batterycircuit, respectively, to the several substations, which circuits are normally open at the last substation in a section to be indicated, as at o, and a corresponding number of switches at the transmitter respectively controlled by said selecting-magnets for respectively (losing branch wires (1, leading from the heavy battecy-cirouit to contact-pens d, w" h engage the conducting portion (1 of the signal-wheel d, which is employed for operating the indicator-circuit.

The switches comprise movable members, (shown as contact-pens i'-',) several of which may be attached to a signal-plate if, which is i l l l pivoted at 'i" to the frame, ,and stationary members, (shown as contact-pens 11 several of which may be attached'to asingle block '5 of insulating material, the pens i bein so" disposed as to be movable into and out 0 'en-'- g;gement with the pens i to close-and'open their respective branch wires. The selecting magnets 1' determine which switch shall be operated, and to accomplish this result said magnets are arranged in a row, andtheir armature-levers L are independently pivoted and are formed with hooked ends adapted when in retracted position to engage the movable members i of the switches and hold them disengaged from the fixed members,

and as said magnets arein'cluded in normally I open branch wires their armatures are nor Whenever one of thebranch wires is closed at the substation, the-- mally retracted.

armature of the selecting-magnet therein will be attracted, and the movable member ofthe particular switch controlled by it willbe disengaged, while the corresponding members of all the other switches will be held-by the remaining magnets. I

The movable members of all the switches are adapted to be moved toward the station-- ary members, and the movable member which is disengaged to be moved into engagement with its fellow member by ositively moving the plate to which all said movable members are attached, and'when said (plate is moved the engaged members will yiel and will not engage their fellow members, and thedisengaged member will engage its fellow member. The plate i has an arm i attached to it, which is connected by a link i with the arm 6 of the winding device of the -motor" mechanism, and whenever said motor mechanism is released and the arm a moved by its actuating-spring the plate. 1', bearing the movable members of the switches, will be moved and the disengaged switch will be closed, the other switches being held open by the en gagement oftheir movable members with thearmature-levers of the remaining selecting magnets. If a large number of substationsare employed, two rows of selectin magnets will be provided, as herein shown, ocated at opposite sides of the row 'of selecting switches, and in suclrevent the armaturelevers of the second row of ma formed with flat ends against which the movable members of the switches abut.

Tooperate the indicator, the multiple-signal transmitter is designed to successively ets will beclose the indicator-circuit a number of times corresponding to the number of or grou s ofsubstations, and to accomplish this rosu t, as herein shown, asinglecircuit-wheel d is employed, having a conducting portion d for engagement with the several contact-pens d, which are connected with the selectingswitches and having a toothed portion d for engagement with a contact-pen d.

The location of the conducting portion d l 0 relative to the toothed portion is important. Normally all of the contactpens d bear upon the conducting portion (1, and the con- 1 tact-pen d is disen aged lrom the toothed portion of the whee so that the circuit, is open at this point. l'Vhcnovm' the transmit ter is released, one of the selectingswitches i i Will be operated to close one of the branch wires cl, and the signal-wheel will revolve, and first the conducting portion (1 will pass out of engagement with all of the contact-pens d scrict'un. Then as the wheel continues its revolution said coiulucting portion (1 will move into engagement with the several contact-pens scriai'im, until all of them again bear upon said conducting portion, and just after said conducting portion engages the first pen of the group the first tooth of the toothed portion d arrives in posit-ion to engage the contact-pen d, and the remaining teeth of said toothed portion will successively engage said pen 4"" as the conducting portion (1 engages the several ens d.

If the switch of the circuit containing the first contact-pen 1 of the group is closed, then all of the teeth of the toothed portion will be efl'ective in closing the circuit and thereby transmitting the signal; but it said circuit is open then the first tooth of suid toothed portion will not be etl'ective, and so on. 'lhere'l ore no impulse will he transmit-- ted until the conducting portion has engaged a contact-pen the circuit ol' which is closed, after which t-l zremaining teeth ot the toothed portion on will be ell'ective to operate the in dicator-circuit. Each substation contains i circuit operating device adapted to be operated by hand, first, to open the normally closed auxiliary circuit which contains a very llght battery y, then to connect a heavy buttery it in saul auxiliary circuit, preferably in series with the light battery, and then to also connect an answer-back-signal magnet in circuit with the heavy-battery circuit thus formed. 'lhese three operations will take place in rapid succession upon pulling down the circnit-operating lever at the substation. This answer-buck signal is contained in the substation and is adapted to operate when the street-box has been released and opens a pair of contacts in the auxiliary circuit; but as it is not introduced into circuit when the circuit-operating device at the substation first connects the heavy battery with the auxiliary circuit the full strength of both batteries will he utilized in operating the aux iliary actuating mechanism ol the strcet box and in releasing the multiple-signal transmitter.

the contact pens 1) will engage the plat hears in! its extremity plurality oi contact pens or brushes 0', which are adapted to engage any one of a series of plates o" 0 0", arranged close togct her in the are of a circle about the pivot 0 as a center. The two auxiliary-circuit wires 3 It, which lead to the box, are connected, respectively, to the bindingposts 0 o. A wire 4 laids from the binding )ost o to the pivot o of the circuitamending lever, and a wire leads from the l indingiost o to the plate 0. The circuit-operating lever o normaltx' occupies its elevated position, with the contactlens borne by it engaging the plate 0", and the normal path tor the current through the substation tollows; 3, 0 i, 1/, o, o, 0 5, o, 3. I

The circuitwire ti, which leads from each substation to the transmitting-station and which is connected to the heavy-battcr circuit, is connected to the binding-post o, and a wire leads from said post to the plate o, and when the circuit-o wraling device 0 is pulled down the auxiliary circuit is broken as the contact-pens leave the plate 0, and while said pens engage the plate 0 the path for current through the substation is as lollows: 2, 0", -1 o, o, o, 0 7, 0, ti.

in pulling down the circuit-operatlug lever only for a very short period ol time. as by t same downward movenunt of said lever th quickly pass otl' ol' said plate and into engagcmr: t E i the platen. The plate 0 is onnected by a wire ts with the electromzuznet. 0 ol t he unmvcnbaclt signal. and a wit": 9 leads from said clectromagnet to the pl: so that Win5=n the contact-pens o are i 1 cngagemcnt with the plate o the path tor the current through the substation is as lollou's: 2,1)", t, o, o, 0:, H, o, .l, o", 7, o", b.

the o wratmg clcctronmgrwt o1 toe answer-burr signal is thus included in the circuit. The armature o ol' said eleetromagnot o is connected to a plate 0", to which the lever o is pivoted, and said armature bears a contact-point which when the urma ture is lull ret I'utttil engages a spring-acting; arm 0, attached to the plate o". l\ hen the contact-pens o engage the plate o and include the electromagnet o in circuit, the :H'-- mature. c", which normally occupies an in tcrmediute position between the electromagnet and the spring-arm, will be ll\lllltllllrlt.

i it

attracted; but the circuit thus established is the arm 0 While this circuit is maintained the armature 0 will rapidlv vibrate, and thus indicate that the auxiliary actuating mechanism at the street-box has been operated to cause said box to send in the alarm. As soon as the answer-back signal has been received the operator will release the circuitoperating lever, which will at once resume its normal elevated position, and the normal path for the current through the substation will be reestablished; but it will be understood that the auxiliary circuit is at such time open at the street-box.

A branch wire 12 leads from the bindingpost 0 and a branch wire 13 leads from the inding-post 0 and said branch wires 12 13 are designed to include a high-resistance telephone-receiver (not shown) to be used for testing purposes. \Vhenever said branch circuit is closed, a cross is formed between the open-wire 6 and the closed wire 3 to thereby include the open wire 6 and the heavy battery-circuit wire, and the high resistance of the telephone-receiver allows but a small por tion of the current to pass, so that an alarm from any substation during such test would not be interrupted or affected thereby. In making this test by the telephone-receiver an intermittent tapping is sullicient to show the condition of the open wire.

The electromagnet f of the tripping device of the multiple-signal transmitter is included in the normally closed auxiliary cir fluit; but its armature is normally retracted by reason of the auxiliary circuit including a light battery and the rctractile spring, which is connected to said armature, being adjusted to overcome the attractive force of the magnet.

9 represents the light battery, which is included in the auxiliary circuit, and with all the parts of the system in their normal position the auxiliary circuit is represented as follows:

light battery g, wire 9, binding- 0st 9', wire g, galvanomctcr g, Wire 9 bint ingost g, wires 9 b binding-post If atthe int icator, wire 0, telltale-switch 0 wire a, bindingpost 0, wire 0' to street-box, answer-back switch If", t, clrctromagnet t of the auxiliary actuating mechanism of the strectbox, wire g", bint'ling-post'g", wire 9 tripping-magnet f wire 9 binding-post g, wire .2 to substation, thence through the substation by 0 4,0, 0,o ,0 ,5,o",3, thence through the other substations which are connected in thecircuit in the same manner, then wire 9, binding-post 9", wire 9 telltale-switch d d wire g", switch a, wire 9 binding-post 9 wire 9 to battery 9. v

11 represents the heavy battery, which is in. cluded in a normally open branch circuit, consisting ol the wire 12-, which leads from one side of th: battery to the binding-post 9*, where it connects with the auxiliary circuit, and a wire h, which leads from the other 7 side of the battery to a binding-post it from which a wire 71 including a crossrelay h leads to a bindingpost h, from which the several substation-wircs it", including the selecting-magncts i, lead to the binding-posts 71 from which wires 6 lead to the binding post 0 of the several substations.

/Vhen any one of the substations is operatcd, the normally closed auxiliary circuit is broken by the pens lea 'ing plate j, and the heavy-battery circuit, together with one of the substation-wires (i, is connected into the auxiliary circuit in such manner that the heavy battery 71 is included in series with the light battery g. The complete circuit first established at such time is as follows: 9, g, g2 g3 g4 g5! go 97) b12137 .24: C21: :20, 32 C23, 625, 2 t auxiliary magnet t, g g, g, tripping-mag net f", g, g, 2, o 4, o, o, 0 o, 7, 0, 6, h", 71 including selccting magnet 1', 7t", 71:, including 71"", 71-, 71 71, It, 9 g to g, The heavy-battery circuit being thus momen' tarily established, the elc-ctromagnet t.opmates to release the auxiliary actuating mechanism at the street-box, and the electr0- magnet i operates to disengage one of the 'switchcs and the tripping-magnet f operates to release the multiple-signal transmitter and to close the disengaged switch 'i i The switch 0 at the substation when pulled way down linclly introduces the answer-bach-signal magnet into the circuit, the connection being from switch 0, plate 0 wire 8, answer-back magnet 0', wire 9, plate 0, and then on, as previously described. lhc operator will then receive the answtr-lniek signal upon the openin of the switch t t at the street-box, and sulhcieut time is allowed before the multiple transmitter takes possession of the circuit for the answcrd'iacli signal to be received at the substation, the streetbox being released before the answcrdiack signal is sent. The multiple-signal transnutter is at such tilncs, however, run and after a proper length of time has elapsed for the answer back to be sent the pen-engaging portion d" will first pass from beneath the pens d, and thereafter the insulated segmental'block J will separate switchiens d 11 thus opening the auxiliary circuitleading via g, 9", and g to the substations, so that 1 thereafter no manipulation oi the switch 0 at the substation can have any effect on the auxiliary circuit. The pen-engaging portion d of the signal-wheel will next arrive in en-, gagcment with the first one of the series of pens d" shnultaneously with the arrival of the first tooth ol the signalavheel to its contact-pen (1, and thereafter said pen (1 will be engaged by successive teeth of the signal,-

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Wheel as the conducting portion (1 engages v eeeeoa the engaging portion (i arrives at the pen d, 1 connected to a closed selectiilgswitcn, then the circuit to the indicator will be closed through the light and heavy batteries in se- 5 ries and may be traced follows: g, g, 9

gZ1g47g5,gfi, 7 as 1,23 1,21. 1,16 b207 1,22 bu) bind ing-post j, wire j, pen d signal-wheel d ens (1, wire (1 switch i i binding-post 7r, h 'h, h, 7L, 9 g to g. Upon the suc ing signal-wheel the lectromagnet I) will operate and set up the indicator according to the number of teeth of the signal-wheel to come in contaetwith the pen after this 1 5 circuit was first closed.

ferent selecting-magnets i will be included 2 5 The indicator-circuit is normally open, and

0 its regular functions, is adapted to close an- 3 5 switch s is operated to close said switch. 100

-101 the auxiliary circuit is opened by the it, it, h, 71 7a, 102, j, bf,

operating device by which it is closed when- 5 a crossdiarf on the ttllllf which is connectherein represented as follows: battery 106,

When the signal has been transmitted to the indicator, the signal wheel ceases to revolve, and the auxiliary circuit is left open. As the different substations are operated difand. rendered operative, and consequently a different number of impulses will he transinitted by the multiple-signal transmitter, according to the selecting-switch operated.

the heavy-battery circuit is likewise normally open, and to test these circuits a switch a is provided in the auxiliary circuit, and the arm of said switch, in addition to performing other switch composed of two members 100 and 101, included in a branch circuit 102, leading from the lwavy-l attery-circuit-wire at h to the contact pen d, and whenever said switch 8, and said branch circuit is closed, and the circuit established through the galvanometer 9 includes both batteries, as lollows:

At the transmitting-station a vibrating bell 105 is included in a local circuit containing a battery 106, and said circuit contains a circuitever the tripping-magnet is operated, thereby causing the bell to respond. The circuit-operating device in said local circuit consists of a contactpen 107, adapted to be engaged by ates by a cross.

ed with the tripping-dog, and whenever the tripping-dog s disengaged said arm j is moved, and the cross-bar engages the pen 107 and closes the circuit. The circuit is circuit-ire 108, bell 105, circuit-wire 10S), binihngmostlw, circuitwlrc 112, contactpen .1117, arm f rircuit wirc 113, bindingpost 114, circuit 115 to battery. This local circuit includes a hand-switch 116, which may be operated whenever desired to open the circuit. Another local circuit contains a vibrating bell 120, which is adapted to respond whenever the local circuit containing it is closed by the opening oi" the trip-relay l armature or whenever the cross-relay oper- This local circuit is as follows: battery 106, switch 116, circuit-wire 121, binding-post 122, circuit-wire 123, armature'lever of the tripping-magnet f circuit-wire 1-2 1, armature-lever of the crosrelay lr", circuit-wire 125, binding-post 126, circuit-wire 127, bell 120 to battery.

Having thus described my invention, what Iclaim as new, and desire to secure by Letters Patent, is-

1. The combination with the auxiliary actuating mechanism of a signal-box, a circuit thereior, and substations, each substation having means for operating said circuit,

of an indicating device, a circuit therefor, and

means for operating the indicator-circuit controlled by any one of said substations, substantially as described. 1

The combination with the auxiliary actuating mechanism of a signal-box, a circuit therefor, and substations, each substation having meansfor operating said circuit, of an indicating device, a circuit therefor, a multiple-signal transmitter for operating the indicator-circuit, the operation of which is controlled by any one of said substations,

substantially as described.

3. The combination with the auxiliar actuating mechanism of a signal-box, auXi iary circuit, and substations, each substation having means for operatil'ig said auxiliary circuit, of an indicating device, indicatorcircuit, a multiple-signal transmitter for operating said in(licatorcircuit, controlled by any one of the substations, and a trippingmagnet in said auxiliary circuit, substantially as described.

4. The combination with the auxiliary actuating mechanism of a si nahbox, a circuit therefor, and substations, each substaol' an indicating device, a circuit therefor, a

indicator-circuit having a plurality of select ing devices corresponding in number to the number of substations, which are electrically connected with saidsubstations, and a tripping-magnct for said transmitter the' circuit of which is operated at any one ofsaid substations, substantially described.

5. The combination with the auxiliary actuating mechanism of a signal-box, a circuit therefor, and substations, each substation having means for operating said circuit, ol'an indicating device, a circuit thcrefor,a multiple-signal transmitter for operating the imlicator-circuit, having a plurality of. selecting-switches, corresponding'in number to the number of substations, 'which determine the signals which shall be transmitted, and a plurality ol' elcctromagnets for controlling the operation of said switches, and circuits for said magnets leading to the several substations, substantially as described.

tion having means for operating said circuit,

scenes i g eral substations, and means for operating said switches connected with said re easing device, substantially as described.

' 7 The combination with the auxiliary actuating mechanism oi a signal-box, a circuit therefor, and substations, each substation having means for operating said circuit, of an indicating device, a circuit therefor, a multiple-signal transmitter for operating the indicator-circuit, a tripping-magnet for said transmitter, the circuit of which is operated by any one ofthe substations, a plurality of selecting-switches, corresponding in number to the number of substations, a correspond- .number of electroniagnets for controlling the operation of said switches, circuits for said magnets leading to the several substations, and means for operating said si itehes controlled by said tripping-magnet, substantially as described.

The combination with the auxiliary actuating mechanism of a signal-box, a circuit therefor, and substations, each substation having means for operating said circuit, of an indicating device, a circuit therefor, a multi pie-signal transmitter for operating theindicator-circuit, having a releasing device, a plurality of selecting-switches, corresponding in number to the number of substations, a ivoted plate, to which the movable members of said switches are attached, a corresponding number of electromagiiets for controlling the operation of said switches, circuits for said magnets leading to the several substations, and means for connecting said pivoting plate with said releasing device, whereby the former is operated by the latter, substantially as described.

. 9. T he combination with the ainviliary actuating mechanism of a signal-box, a circuit therefor, and substations, each substation having means for operating said circuit, of an indicatin device, a circuit therefor, a multipie-signs transmitter for operating the indicator-circuit having a releasin device, a plu-,

relitv oi selecting-switches, corresponding in number to the number of substations, a pivoted plate bearing the movable members of said switches, a corresponding number of electromagnets for controlling the operation of said switches, the armature levers of which engage the movable members of said switches, and means for connecting said piv oted plate with the releasing device of the transmitter, and circuits for said. magnets leading to the several substations, substantially as described.

10. The combination with the auxiliary 7o actuating mechanism or" a signal-box, a circuit therefor, and substations, each substation having means for operating said circuit, of an indicating device, a circuit therefor, a multiple-signal transmitter for operating the indicator-circuit having a winding device, a tripping-dog for engaging it, a tripping-magnet for said tripping-dog, adapted to be operated by the auxiliary circuit, aplurality of selecting-switches, corresponding in number So to the number of substations, a corresponding number of electromagnets for controlling the operation of said switches, circuits for said magnets leading to the several substations, and means for operating said switches controlled by said tripping-magnets, substantially as described. i

11. The combination with the auxiliary actuating mechanism of a signal-box, a circuit therefor, and substations, each substation having means for operating said circuit, of an indicating device, a circuit therefor, a multiple-signal transmitter for operating the indicator-circuit having a winding device, a trip ing-dog for engaging it, a tripping-mag- 5 net or said tripping-dog, adapted to be operated by the auxiliary circuit, a plurality of selecting-switches, corresponding in number to the number oi substations, a corresponding number of electromagncts for controlling the operation of said switches, circuits for said magnets leading to the several substations, and means connected with the winding device for operating said switches, substantially as described.

12. The combination with the auxiliary actuating mechanism, of a signal-box, an

auxiliary circuit, and substations therein, each substation having means for operating said auxiliary circuit, of an indicating device andcircuit therefor, a multi le-signal transmitter for operating the inc icator-circuit, a winding device for said transmitter having a 't-rippii1garm, a trip ing-dog into engagement with which sai arm is moved by the winding device, and a trip ing-magnet for saidtripping-dog operated .)y the auxiliary circuit, substantially as described.

13. The combination with the auxiliary actuating mechanism of a signal-box, an aux- I 20 iliary circuit, and substations therein, each substation having-means for operating said I auxiliary circuit, or" an indicating device and circuit therefor, a multiple-signal transmittor for operating the indicator-circuit, a de- 12 5 tent borne by one of the shafts of the transmitting-train, a locking-lever adapted t0 en gage said detent, a winding device for the transmitting-train having means for controlling the position of said locking-lever, and 1 0 having a tripping-arm, a tripping-dog into engagement with which said arm is moved by the Winding device, and a tripping-magnet for said do operated by the auxiliary circuit, substantia ly as described.

14. The combination with the auxiliary actuating mechanism of a signal-box, an auxiliary circuit, and substations therein, each substation having means for operating said auxiliary circuit, of an indicatin device and circuit therefor, a multiple-signa? transmitter for operating the indicator-circuit controlled by any one of the substations, a detent borne by one of the shafts of the transmitting-train, a locking-lever adapted to engage said detent, means for moving said locking-lever out of engagement therewith, to release the train, a member driven by the train for moving said locking-lever into position to engage the detent, and a winding device for the transmitting-train, which also controls the position of said locking device, substantially as described.

15. The combination with the auxiliary actuating mechanism of a signal-box, an auxiliary circuit, and substations therein, each substation having means for operating said auxiliar circuit, of an indicatin device and circuit t erefor, a multiple-sigma transmitter for operating the indicator-circuit, controlled by any one of the substations, a detent borne by one of the shafts of the transmittingtrain, a locking-lever adapted to engage said detent, means for moving said locking-lever out of engagement therewith to release the train, a member driven by the train for moving said locking-lever into position to engage the detent, and a winding device for the transmitting-train, which also controls the position of the locking-lever, having a tripping-arm, a tripping-dog into engagement with which said arm is movedby the winding device, and a tripping-magnet for said dog, 0 erated by the auxiliary circuit, substantial as described.

16. Tie combination with the auxiliary actuating mechanism of a signal-box, an auxiliary circuit, and substations therein, each. substation having means for operating said auxiliary circuit, of an indicating device and a circuit therefor, a multi le-signal transmitter for operating the in icator-circuit, controlled by any of the substations, a winding device for said transmitter having a trippingarm, a tripping-dog into on agement with which said arm is moved by t e winding de- Vice, and a tripping-magnet for said trippingdog, operated i; theauxiliary circuit, and means operated y the windin device for restoring the tripping-dog, su )stantially as described.

17. The combination with the auxiliary actuating mechanism of a signal'box, aux

iliary circuit, and substations, each substation havlng means for operating said auxilteases iary circuit, of an indicating device, indicator: circuit, a multiple-signal transi'nitter for op erating said indicatoneircuit controlled. any one of the substations, a trippingdog for releasing said transmitter, an engaging ds-, I

iary circuit, of an indicating device, indi cater-circuit, a multipleesignal transmitter for o crating said indicator-cincnit, controlle ing a tripping-arm, a trip leg-dog for si'igay ing said arm, a rock-sha t to which it sccured, having a latch-engaging arm, a piv oted latch for engaging said arm, and a trip- .pin -magnet having means for inovin;

atci to disengage the cam, substantis iy as described.

19. The combination with the auxi a y actuating mechanism of a signalrbon, an auxiliary circuit, and, substations, each substation having means for operating said circuit, of an indicating device, a circuit therefor, and means for operating said indicates-circuit, controlled. by an one of said substations, a normally close telltale-switch in said auxiliary circuit at the indicator, means for opening it when the-indicator is operated, and means for closing it when the indicator is reset, substantially as described.

20. The combination with the auxiliary actuating mechanism of a signahbeiaan auniliary circuit, and substations, each substation having means for operating said circuit, of an indicating device, a circuit therefor, and means for operating said circuit ccn trolled by any one of said substations, a non mally closed telltale switch in said auniiieiry circuit at the indicator, means operated: the indicating mechanism for opening switch, and by the resetting device for rashsequently closing it, substantially a (ii ffir scribed.

21. The combination with. the auniiiary actuating mechanismof a signahbox, -8 31 5- iliary circuit, and substations, each, subs kr tion having means for operating-saidcirceit,

of an indicating device, a circuit therei a mult ple-signal transmitter-for opsratingt he indicator-circuit, the operation of which is controlled by any one of said substations, a'

winding device i'or said. transmitter, and a telltale-switch in the auxiliary circuit at the transmitter, the operation of which is {301.1- trolled by the Winding device of the'trans mitter, substantially as.described.-,

22. The combination with the auxiliary actuating mechanism of asignabbozs, an sure by any one of the substations, has

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tale-switch in the auxiliary circuit at the transmitter, means for opening it when the transmitter operates to transmit its signal, and means for, closing it when the transmitter is Wound, substantially as described.

23. The combination with the auxiliary actuating mechanism of a signal-box, an auxiliary circuit, and substations therein, each substation havin means for operating said circuit, of an in icating device and circuit therefor, and multiple-signal transmitter for operating the indicator-circuit, having two successive periods of operation, the first controlled by any one of the substations, and the second controlled by the winding device, a telltaleswitch in the auxiliary circuit at the transmitter, means operated by the transimitter, during its first period of operation,

for opening said switch, and during its second period of operation for closing it, substantially as described.

24. The combination with the auxiliary actuating mechanism of a signal-box, an auxiliary circuit, and substations therein, each substation having means for operating said circuit, of an indicating device, and circuit therefor, a multiple-signal transmitter for operating the indicator-cirouit having two successive periods of operation, the first controlled by any one of the substations, and the second controlled by the winding device, a telltale-switch in the auxiliary circuit at the transmitter, a segmental block on one of the shafts of the transmitter, which is operated during its first period of operation to 0 en said switch and during its second perio of operation to close it, substantially as d scribed.

25. The combination with the auxiliary actuating mechanism of a signal-box, an auxiliary circuit containing a light battery, a circuit containing a heavy battery, substations in said auxiliary circuit, each substation having a circuit-operating device adapted to connect the heavy battery in series with the light battery, an indicator, a circuit there which, when established, includes said'bat teries, and means for operating said indicatorcircuit controlled by any of said substations, V

substantially as described.

26. The combination with the auxiliary actuating mechanism of a signal-box, an auxiliary circuit containing a light battery, a circuit containing a heavy battery, substations in said auxiliary circuit, each substation having a circuit-operating device adapted to connect the heavy battery in series with theli ht battery, an indicator, a circuit there or,

'which, when established, includes saidbatteries, a multiple-signal transmitter for operating said indicator-circuit controlled by any one of said substations, and a tripping-magnet for said transmitter, included in the auxiliary circuit, substantially as described,

In testimony whereof I have signed myname to this specification in the presence of two subscribing witnesses.

, GEORGE F. MILLIKEN. Witnesses i B. J. NoYEs,"; H. B. DAVIS. 

